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What are you going to do if you are in a burning house? How will you escape? Do you know how to save yourself? Please read the following passage. Escaping a fire is a serious matter.Knowing what to do during a fire can save your life.It is important to know the ways you can use and show them to everyone in the family,such as stairways and fire escapes,but not lifts. From the lower floors of the buildings,escaping through windows is possible,learn the best way of leaving by windows with the least chance of serious injury. The second floor window is usually not very high from the ground.An average(平均高度的)person,hanging by the finger-tips will have a drop of about six feet to the ground.It is about the height of an average man.Of course,it is safer to jump a short way than to stay in a burning building. Windows are also useful when you are waiting for help.Be sure to keep the door closed.Or smoke and fire may be drawn into the room.Keep your head low at the window to be sure you get fresh air rather than smoke that may leaked(渗)into the room. On a second or third floor,the best windows for escaping are those that open onto a roof.From the roof a person can drop to the ground more safely.Dropping onto cement(水泥)might end in injury.Bushes(灌木丛)and grass can help to break a fall. 小题1:It is important to _______. A.put out the fire in the burning house B.know the ways to escape the fire C.jump off a burning house D.keep the door closed 小题2:It is possible to escape through the windows _______. A.if there are some bushes on the ground B.if you are strong enough C.if you live on a lower floor D.If you have a long rope 小题3:Which of the following escaping way is NOT right? _______. A.You can escape through stairways. B.You can choose fire escapes. C.Escape from the windows that open onto a roof. D.Use a lift to come down at once. 小题4:Open the window so that _______ if the building is on fire. A.you can get fresh air B.you can call for help C.you can easily jump off D.you can be seen first 小题5:The best title of the passage is _______. A.Escaping from the Windows B.Save Yourself in the Burning House C.Knowledge on Fire D.Waiting for Help
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【简答题】三角带C2800的含义是C指(),而2800是指带的()。
【单选题】下列关于动压的那种说法是正确的
A.
总压与静压之和
B.
总压与静压之差
C.
动压和速度成正比
【简答题】三角带C2800的含义是()。
【多选题】下列关于动压的那种说法正确
A.
动压等于静压与总压之和
B.
动压等于总压与静压之差
C.
动压和速度的平方成正比
D.
动压和速度成正比
【单选题】关于电源的电动势,下列说法正确的是( )
A.
在某电池的电路中每通过2 C的电荷量,电池提供的电能是4 J,那么这个电池的电动势是0.5 V
B.
电源的电动势越大,电源所提供的电能就越多
C.
电源接入电路后,其两端的电压越大,电源的电动势也越大
D.
无论电源接入何种电路,其电动势是不变的
【单选题】关于止血法的应用,下列那种说法不正确?
A.
加压包扎用于多数活动性出血伤口
B.
较大而深的伤口可用填塞止血法
C.
指压止血主要用于肢体及头面部
D.
四肢出血均可用止血带止血法
E.
无骨折的四肢出血还可用屈肢加垫止血法
【简答题】预习《世界经典服装设计与纸样-女装篇(上集)》中的第四章-衬衫设计与纸样,先阅读第一节至第五节的文字内容,在笔记本上记录重点内容。然后根据第六节-女衬衫基本型纸样的设计中女衬衫基本型的制图步骤画出1:5或者1:4的女衬衫原型(包括女衬衫前、后衣片,袖子)。
【单选题】not  体重 > 100   等价于
A.
体重 <=  100
B.
体重 < 100
【多选题】下列属于营销对象的有( )
A.
商品
B.
服务
C.
事件
D.
体验
E.
人物
F.
地点
【单选题】关于MENDEO2.0L发动机EGR阀.下列那种说法是正确的()
A.
此EGR阀属于废气差压回馈式
B.
该EGR阀有专门的控制模块
C.
该EGR阀属于步进式,因而没有位置传感器
D.
以上说法都不对
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